java匿名内部类一般是没有变量指向的对象，只能使用一次
如下代码，为了使用抽象类People的eat方法还要去继承然后复写eat方式，非常麻烦。对于接口也是如此。
package com.lubby.nosynchronizedtest;
public abstract class People {
public abstract void eat() ;
}<pre name="code" class="java">package com.lubby.nosynchronizedtest;
public class Teacher extends People {
@Override
public void eat() {
System.out.println("老师正在吃饭");
}
public static void main(String[] args) {
People people = new Teacher();
people.eat();
}
}
package com.lubby.nosynchronizedtest;
public class Teacher {
public static void main(String[] args) {
new People() {
@Override
public void eat() {
System.out.println("我正在吃饭");
}
}.eat();
}
}
package com.lubby.nosynchronizedtest;
public class Teacher {
public static void main(String[] args) {
Thread thread1 = new Thread() {
public void run() {
System.out.println("线程1正在跑");
}
};
thread1.start();
}
}
package com.lubby.nosynchronizedtest;
public class Teacher {
public static void main(String[] args) {
Runnable runable = new Runnable() {
@Override
public void run() {
System.out.println("run.......");
}
};
Thread thread = new Thread(runable);
thread.start();
}
}
原文：http://blog.csdn.net/liu00614/article/details/34882745